package com.zyz.L_泛型.通配符;

import java.util.ArrayList;

/**
 * @author: vick
 * @Date: 2025/4/2
 * @Description:
 * @version: 1.0
 */
public class Demo1 {
    public static void main(String[] args) {
        ArrayList<?> objects = new ArrayList<>();
        //objects.add(new Object()); //编译异常


    }
}
